Two significantly similar cars, no doubt about that. Still, each one has something different to offer. Having both cars powered by diesel engines and utilizing the 4-door sedan body style within the same 'Luxury car' segment, the only major difference here really is their wheel drive configuration (front for the Volvo and rear in the case of the Mercedes Benz). The first one has a Volvo-engineered powertrain under the hood, a 5-cylinder, 20-valves 185hp unit, while the other one gets its power and torque from a 6-cylinder, 24-valves 224hp engine designed by Mercedes Benz.

Unfortunatelly, neither of the two vehicles was submitted to the European New Car Assessment Programme (Euro NCAP) testing. This makes it virtually impossible for me to pick one over the other and I'm generally against buying such cars as the safety should really always come first. Still, apart from the official crash test results there are other things we need to be aware of. Both vehicles belong to the luxury car segment, which is generally a very good thing safety-wise, still it doesn't help us solve our dilemma, does it? On the other hand, taking kerb weight as an important factor into account, the German car offers a considerable difference of 12% more metal.

I don't like generalizing things when it comes to reliability, although it does seem that Volvo does have a slight advantage, all the models observed together. These are the results of an independent reasearch, while our visitors describe reliability of Volvo with an average rating of 4.6, and models under the Mercedes Benz badge with 4.4 out of 5. Independent research findings rank S80 as average reliability-wise, and CLS is more or less at the same level.That apart, owners of different cars powered by the same engine as the Swedish car rank it on average as 5.0, while the one under the competitor's bonnet gets 4.5 out of 5.

Mercedes Benz is undoubtly more agile, reaching 100km/h in 1.5 seconds less than its competitor. In addition to that it accelerates all the way to 246 kilometers per hour, 21km/h more than the other car. When it comes to fuel economy the winner has to be the Swedish car, averaging around 6.4 liters of fuel per 100 kilometers (44 mpg), in combined cycle. We can't ignore that 19% difference compared to the German car.

Volvo appears just a bit more reliable, although the difference is truly marginal. The most important thing when deciding between any two vehicles should always be safety, both passive and active. In my opinion, everything taken into account, the German car offers significantly better overall protection, taking the lead here. It all continues in the same direction, with Mercedes Benz being considerably quicker, thus putting more smile on driver's face. It does come at a cost though, and that's the fuel consumption... It's really tough to make a final decision here, but if I'd need to, I'd say Volvo. Anyway, that's the most objective conclusion I could've came up with and it's based solely on the information found on this website. Aspects such as design, practicality, brand value and driving experience are there for you to measure them out. In case you have two minutes to spare I invite you to define your needs, desires and budget and see which car would be chosen by the virtual adviser™, among more than 12.000 different ones in our database.